One actor that has made a name for his impressive on-screen transformations is Mark Wahlberg. Whether he’s having to slim-down or pack on the pounds, Wahlberg approaches each task with the kind of ...

The Hollywood actor is still sporting an impressive six-pack. Here's a glimpse at his training and nutrition routine.

Related: Personal Trainer Shares the 2-Day Workout Plan That Helps Beginner Lifters Make Big Gains. Mark Wahlberg's Full-Body ...